<template>
	<!-- 商品详情轮播图 -->
	<view class="product-bg" :style="[swiperHeight]">
		<swiper :indicator-dots="indicatorDots" indicator-active-color="var(--view-theme)" :autoplay="autoplay"
			:circular="circular" :interval="interval" :duration="duration" @change="change" v-if="isPlay">
			<!-- #ifndef APP-PLUS -->
			<swiper-item v-if="videoline">
				<view class="item">
					<view v-show="!controls" class="item-box">
						<video id="myVideo" :src="videoline" objectFit="cover" controls
							style="width: 100%; height: 100%" show-center-play-btn show-mute-btn="true"
							auto-pause-if-navigate :custom-cache="false" :enable-progress-gesture="false"
							:poster="imgUrls[0]" @pause="videoPause"></video>
					</view>
					<view class="poster" v-show="controls">
						<image class="image" :src="imgUrls[0]"></image>
					</view>
					<view class="stop" v-show="controls" @tap="bindPause">
						<image class="image" src="../../static/images/stop.png"></image>
					</view>
				</view>
			</swiper-item>
			<!-- #endif -->
			<!-- #ifdef APP-PLUS -->
			<swiper-item v-if="videoline">
				<view class="item">
					<view class="poster" v-show="controls">
						<image class="image" :src="imgUrls[0]"></image>
					</view>
					<view class="stop" v-show="controls" @tap="bindPause">
						<image class="image" src="../../static/images/stop.png"></image>
					</view>
				</view>
			</swiper-item>
			<!-- #endif -->
			<block v-for="(item, index) in imgUrls" :key="index">
				<swiper-item v-if="videoline ? index >= 1 : index >= 0">
					<image :src="item" class="slide-image" />
				</swiper-item>
			</block>
		</swiper>
		<!-- #ifdef APP-PLUS -->
		<view v-if="!isPlay" style="width: 100%; height: 750rpx">
			<video id="myVideo" :src="videoline" objectFit="cover" controls style="width: 100%; height: 100%"
				show-center-play-btn show-mute-btn="true" autoplay="true" auto-pause-if-navigate :custom-cache="false"
				:enable-progress-gesture="false" :poster="imgUrls[0]" @pause="videoPause"></video>
		</view>
		<!-- #endif -->
		<view class="w-full flex-center absolute left-0 bottom-54rpx z-4" v-if="imgUrls.length > 1 && showDot">
			<block v-for="(_, index) in imgUrls" :key="index">
				<view class="dot_item h-4 rd-2rpx" :class="currents == index?'dot_item_active':''"
					:style="{ 'background-color': currents == index ? '#fff' : 'rgba(255,255,255,0.5)', width: 12 + 'rpx' }">
				</view>
			</block>
		</view>
		<view class="w-full flex-center abs-lb h-200 white-jianbian" v-show="controls"></view>
	</view>
</template>

<script>
	export default {
		props: {
			imgUrls: {
				type: Array,
				default: () => []
			},
			videoline: {
				type: String,
				default: ''
			},
			showDot: {
				type: Number,
				default: 1
			},
			autoHeight: {
				type: Number,
				default: 0
			}
		},
		data() {
			return {
				indicatorDots: false,
				circular: true,
				autoplay: true,
				interval: 3000,
				duration: 500,
				currents: 0,
				controls: true,
				isPlay: true,
				videoContext: '',
				imgHeight: 375
			};
		},
		mounted() {
			if (this.videoline) {
				this.imgUrls.shift();
			}
			// #ifndef APP-PLUS
			this.videoContext = uni.createVideoContext('myVideo', this);
			// #endif
		},
		computed: {
			dotWidth() {
				let windowWidth = uni.getSystemInfoSync().windowWidth;
				return (windowWidth * 2 - (40 + (this.imgUrls.length - 1) * 12)) / this.imgUrls.length;
			},
			swiperHeight() {
				let windowWidth = uni.getSystemInfoSync().windowWidth;
				let that = this;
				uni.getImageInfo({
					src: this.imgUrls[0],
					success: (image) => {
						that.imgHeight = image.height * windowWidth / image.width;
					}
				});

				if (this.autoHeight) {
					return {
						height: `${this.imgHeight}px`
					};
				} else {
					return {
						height: '750rpx'
					};
				}
			}
		},
		methods: {
			videoPause(e) {
				// #ifdef APP-PLUS
				this.isPlay = true;
				this.autoplay = true;
				// #endif
			},
			bindPause: function() {
				// #ifndef APP-PLUS
				this.videoContext.play();
				this.$set(this, 'controls', false);
				this.autoplay = false;
				// #endif
				// #ifdef APP-PLUS
				this.isPlay = false;
				this.videoContext = uni.createVideoContext('myVideo', this);
				this.videoContext.play();
				// #endif
			},
			change: function(e) {
				this.$set(this, 'currents', e.detail.current);
			}
		}
	};
</script>

<style scoped lang="scss">
	.item-box {
		width: 100%;
		height: 100%;
	}

	.product-bg {
		width: 100%;
		position: relative;
	}

	.product-bg swiper {
		width: 100%;
		height: 100%;
		position: relative;
	}

	.product-bg .slide-image {
		width: 100%;
		height: 100%;
	}

	.product-bg .pages {
		position: absolute;
		background-color: #fff;
		height: 34rpx;
		padding: 0 10rpx;
		border-radius: 3rpx;
		right: 30rpx;
		bottom: 30rpx;
		line-height: 34rpx;
		font-size: 24rpx;
		color: #050505;
	}

	#myVideo {
		width: 100%;
		height: 100%;
	}

	.product-bg .item {
		position: relative;
		width: 100%;
		height: 100%;
	}

	.product-bg .item .poster {
		position: absolute;
		top: 0;
		left: 0;
		height: 750rpx;
		width: 100%;
		z-index: 9;
	}

	.product-bg .item .poster .image {
		width: 100%;
		height: 100%;
	}

	.product-bg .item .stop {
		position: absolute;
		top: 50%;
		left: 50%;
		width: 136rpx;
		height: 136rpx;
		margin-top: -68rpx;
		margin-left: -68rpx;
		z-index: 9;
	}

	.product-bg .item .stop .image {
		width: 100%;
		height: 100%;
	}

	.dot_item {
		width: 12rpx;
		height: 12rpx;
		border-radius: 50%;

		&.dot_item_active {
			width: 16rpx;
			height: 16rpx;
			border-radius: 50%;
		}
	}

	.dot_item~.dot_item {
		margin-left: 12rpx;
	}

	.white-jianbian {
		background: linear-gradient(180deg, rgba(255, 255, 255, 0) 0%, rgba(0, 0, 0, 0.2) 100%);
	}
</style>